Selma Spencer, the mother of Air Force Vice Chief of Staff Gen. Larry Spencer, speaks at a Martin Luther King, Jr. Commemoration at the Robert Russa Moton Museum in Farmville, Va., Jan. 12, 2013. Ms. Spencer was one of more than 450 students who walked out of the all-black, R. R. Moton High School in Farmville April 23, 1951, demanding equality. (U.S. Air Force photo/Lt. Col. John Sheets)